Comprehensive Roofing Terms Glossary

Demystifying Roofing Jargon: An In-Depth Look at Key Terms

Roofing projects can often be complex, filled with industry-specific jargon and terminology that might be unfamiliar to homeowners and those new to the field. Our comprehensive guide to essential roofing terms aims to demystify these terms, providing clear definitions and explanations. Whether you're a homeowner embarking on a roofing project, a student studying construction, or a professional looking to refresh your knowledge, this glossary is designed to be your go-to resource. Explore the terms below to gain a deeper understanding of roofing concepts and enhance your ability to make informed decisions.


A half-circular shaped opening in a lapped edge or seam, caused by wrinkling or shifting during installation.


A projecting rim or edge used for strength or for attachment to another object.


A thin piece of metal used to prevent water seepage into a building.

Flashing Collar

A device used to seal around projections extending through the roof.


The triangular portion of a wall between the edges of intersecting roof pitches.

Gravel Stop

A device designed to prevent loose aggregate from washing off the roof.


A channel at the edge of the roof for carrying off rainwater.


The external angle formed by the intersection of two sloping roof planes.

Hip Shingles

Shingles used to cover the inclined external angle formed by two sloping roof planes.

Ice Dam

A mass of ice that forms along the lower edge of rooflines in climates subject to freezing temperatures.